1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
|
""" An instance editor that allows total control over widget creation. """
# Enthought library imports.
from traits.etsconfig.api import ETSConfig
from traits.api import Any
from traitsui.api import EditorFactory
# fixme: We need to import the 'Editor' class from the appropriate toolkit.
exec('from traitsui.%s.editor import Editor' % ETSConfig.toolkit)
class _WidgetEditor(Editor):
""" An instance editor that allows total control over widget creation. """
#### '_WidgetEditor' interface ############################################
# The toolkit-specific parent of the editor.
parent = Any
###########################################################################
# '_WidgetEditor' interface.
###########################################################################
def init(self, parent):
""" Initialize the editor. """
self.parent = parent
# fixme: What if there are no pages?!?
page = self.object.pages[0]
# Create the editor's control.
self.control = page.create_control(parent)
# Listen for the page being changed.
self.object.on_trait_change(self._on_page_changed, 'selected_page')
return
def dispose(self):
""" Dispose of the editor. """
page = self.object.selected_page
page.destroy_control()
return
def update_editor(self):
""" Update the editor. """
pass
###########################################################################
# Private interface.
###########################################################################
def _on_page_changed(self, obj, trait_name, old, new):
""" Dynamic trait change handler. """
if old is not None:
old.destroy_control()
if new is not None:
self.control = new.create_control(self.parent)
return
class WidgetEditor(EditorFactory):
""" A factory widget editors. """
###########################################################################
# 'object' interface.
###########################################################################
def __call__ (self, *args, **traits):
""" Call the object. """
return self.set(**traits)
###########################################################################
# 'EditorFactory' interface.
###########################################################################
def simple_editor(self, ui, object, name, description, parent):
""" Create a simple editor. """
editor = _WidgetEditor(
parent,
factory = self,
ui = ui,
object = object,
name = name,
description = description
)
return editor
custom_editor = simple_editor
text_editor = simple_editor
readonly_editor = simple_editor
#### EOF ######################################################################
|
